Nebraska · United States
O'Neill population
3,653people · latest figure
O'Neill has a population of 3,653, making it the 6154th largest place we list in United States. It is in Nebraska.
O'Neill holds under a tenth of one per cent of United States's 349,035,494 people. New York City, the largest place we list there, is 2410 times its size. Twenty years earlier the World Gazetteer recorded 3,509, a rise of 4%.
The 2005 figure comes from the World Gazetteer archive restored on this site. The two sources may draw the settlement's boundary differently, so treat the change as indicative rather than exact. Why figures differ.
O'Neill is in Nebraska, which has 217 recorded places.
Nearby in size
| Place | Region | Population |
|---|---|---|
| Loudoun Valley Estates | Virginia | 3,656 |
| Piggott | Arkansas | 3,655 |
| Osage | Iowa | 3,654 |
| Sidney | Maine | 3,653 |
| Wellsville | Utah | 3,650 |
| Barkhamsted | Connecticut | 3,647 |
All places in United States → · Nebraska →
Figures are the latest available in GeoNames (CC BY 4.0), which draws on national censuses of varying dates — treat them as recent, not same-year. Country totals are UN World Population Prospects 2024 (medium variant) where the UN lists the country separately; the handful it reports under a parent state keep a GeoNames figure and are marked as such. Sources & method.